An extended period of relatively little news about domestic terrorist threats was shattered this week. A spate of arrests and reports of fearsome plots have Americans back on edge and struggling to make sense of the suspects and continuous headlines.

Threats included one in Illinois –

Michael Finton, who also goes by the name of Talib Islam, was arrested in Illinois on Wednesday for allegedly plotting to blow up a federal building, an act which led him to being charged with attempted murder of federal employees and attempting to detonate a weapon of mass destruction.